Churn



S. T. CURTISS. Ghurn.

No. 240,306. Patented April 19, |881.-

n un mlm.

UNITED STATES- PATENT OEEICE.

SAMUEL T. CURTISS, OF EL PASO, ILLINOIS.

CHURN.

SPECIFICATION forming part of Letters Patent No. 240,306, dated April 19, 1881.

Application filed September 1, 1879.

To all whom t may concern:

Be it known that I, SAMUEL T. CURTISS, of El Paso, in the county of Woodford, in the State of Illinois, have invented an Improvement in Butter-Ohurns; and I do hereby declare that the following is afull, clear, and exact description thereof', reference being had to the annexed drawings, making a part of this specification, in which like letters of reference refer to like parts, and in which- Figure 1 represents a vertical elevation through the center of the churn or case; Fig. 2, superficial view with the cover and rim removed; Fig. 3, elevation (side) of the side dasher; Fig. 4, front elevation of the latter.

This invention is intended as an improvement on my patent of June 9,1868, No. 78,791; and it consists of a series of blocks arranged and attached at equal distances apart to the dasher-arm of the vertical shaft of the churn, the center block being made to curve outwardly to an edge at each end, but in opposite directions, while each of the other blocks is made wedge-shaped in front, curved to an edge at the rear, and turned toward the casing of the churn, in connection with a vertical dasher fixed to the side of the churn, so as to increase the churning motion of the cream; also, in the construction of an auxiliary side dasher consisting of wedge-shaped blocks attached to a vertically-sliding plate adjustable at dierent heights on the inner vertical surface of the churn, in combination with a central rotary dasher, the object being to subdivide the current of the cream, as hereinafter more fully set forth.

In the drawings, A represents the body of the churn; B, the vertical axle of the dasher;

C, horizontal dasher, composed of flat arms t' i, and of the wedge-shaped blocks c b c b c', arranged at equal distances apart transversely of the arms t'. Each block is wedge in front, except the middle block, presenting a vertical edge forward in the line of its course, and extends back (of this shape) to a medial line, k, common to them all. Thence to their rear they curve outward (in the formof a bent wedge) from their respective axes, the outer one divergingless. (Better seen in Fig. 2.)

E ward, as shown by arrows.

The vertical section of each block is a parallelogram.

D is the side dasher, attached adjustably, higher or lower, in vertical cleats j', to the side of the churn, and consists of a plate, e, which slides behind said cleats, upon which is txed three wedge-shaped blocks, 1 2 3, ver; tically one above the other, leaving a small space between each. Each block projects horizontally, presenting each edge, so as to meet the current of cream. The upper and lower blocks are triangular in longitudinal section, with their respective bases at a right angle to their respective points, each in a line with bases of their fellows. The lower horizontal angle of each block is beveled off at an ascendin g angle parallel with the surface ofthe opposite block, for directing` the cream up- The center block, 2, is channeled along the apex or edge at m, leaving two parallel ridges, g h, which are subdivided by cross-grooves into several pyramidal points for the better division of the cream. A spring, a, may be used to hold the dasher D in place.

The operation of this churn is as follows: The rotary dasher C is revolved in the course shown by the arrows, forcing the current of the cream between the wedges a b' c', Ste., whence the tails77 of the Wedges throw the cream sidewise toward the sides of the churn and toward the breaker or side dasher, D, when it is further subdivided and forced upward along the ascending surfaces of the same, assisted by means of the rear bevels of the two upper blocks. A pinion at the summit of the shaft B is connected with proper gearing by which to rotate the dasher C. The dasher D is raised or lowered according tothe height of the cream in the churn.

What I claim as my invention is l. The combination, with a dasher xed to the side of a churn, of the rotary dasher arm or plate O of the shaft B, said plate havibg the blocks b, c, a', b', and c fixed thereto, the center block, c', being curved outwardly to an edge at each end, but in opposite directions, and the blocks b, c, b', and c having their forward parts wedgeshaped and their rear parts curved to edges and turning toward the easing of the churn, as herein specified.

2. Wedge-shaped blocks 1,2, and 3, attached to a vertieally-slidinr,` plate, D, adjustable at different heights, in combination with a revolving horizontal flasher, C, substantially as and for the purposes set forth.

In testimony that I Claim the foregoing ehurn-dashers or churn I have hereunto setJ my hand this 23d day of August, 1879.

SAMUEL T. CURTISS.

Witnesses:

JAMES M. MORSE, PHILIP THAiRs'roN. 

